Synthesis and characterization of oxo- and thiophosphorylcyclopentadienyl Ti(IV) thiolate complexes. Crystal structures of [( η5-C 5H 4P(S)Ph 2)( η5-C 5H 4SiMe 3)TiCl 2] and [( η5-C 5H 4P(S)Ph 2) 2Ti(SPh) 2]·C 4H 10O

Abstract

New titanium (IV) complexes containing diphenyloxo- or diphenylthiophosphorylcyclopentadienyl ligands are obtained by reaction of diphenylphosphinocyclopentadienyl derivatives with the appropriate oxidizer (S 8 or H 2O 2). The crystal structures of [( η 5-C 5H 4P(S)Ph 2)( η 5-C 5H 4SiMe 3)TiCl 2] 3 and [( η 5-C 5H 4P(S)Ph 2) 2Ti(SPh) 2]·C 4H 10O 7 indicate in both cases, a pseudo-tetrahedral arrangement around the titanium atom. The two SPh ligands in compound 7 are orientated in opposite sites of the TiS 2 plane, which suggests an anti conformation for this molecule.